Stove



Aug. 7, 1928.

L. T. WILCOX swovn Filed Oct. 1, 1927 3 Sheets-Sheet 1 Aug. 7, 1928.

L. T. WILCOX STOVE Filed Oct. 1, 1927 3 Sheets-Sheet 2 auoentoz ZfW/S TMIC 0X Aug 7, 1928.

L. T. WI LCOX STCVE Filed Oct. 1, 1927 3 Sheets-Sheet Patented Aug. 7,1928.

LEWIS T. WILCOX, OF PEEKSKILL, NEW YORK.

STOVE.

Application filed October 1, 1927. Serial No. 223,285.

My invention relates to stoves such as cooking stoves employing oilburners supported upon burner base and which supply heat through a drumor chimney to one or more cooking openings and are in turn xplied withfuel from an oil reservoir attached to the ktcllOl of the stove.

It is becoming the practice to construct such types of stoves fromsheet'metal as far as possible and accordingly to stamp'as many of theparts as possible from sheet metal thus reducing: the cost (itmanuiacturmg, shipping andasse sibling. However in mass production ofsheetmetal parts it frequently happens that the stampings are notexactly unit'erm and consequently when the several parts oi a stovebeing assembled it may occur that the adjoining sections such as theburner shell and drum do not always align themselves properly to make atight joint and yet retain the pix per relative posi; 'tions. Also inmany instances the floor upon which the stove is placed is not exactlylevel resulting in a consei uient tilt of the stove and otthe tuelreservoir. I

t is the purpose oi? this invention to provide a stove constructedprincipallyot sheet metal parts v-urich will permit adjustment thereofwhen the parts are being assembled in order that they may be securedtogether and yet be in proper alignment and position and which willpermitadjustment of the several parts after the stove has beenassembled. Accordingly I support the burner shell or tube directly uponthe fuel supply pipe and in proper relation thereto through the mediumeta base ringrigidly secured thereto and to which the burner shell isremovably secured. The burner drum is constructed to lit at its upperend into an opening in the heat collector or other pertion of the upperstove assembly and is adjustably supported at its lower end upon acurved shoulder "formed upon a burner collar carried. by the burnershell in such manner that tl'iroughout wide Variation of uprightpositions of the drum the bottom thereof will lit tightly upon thecollar and not permit a flow ot air through the joint. My invention alsocon prehonds a special. adjustable atta hment or support :ter the fueltank against the side of the stove so as to permit otjangular adjustmentof the supply pipe to level the burner seats.- Means for detachabiylatching the burners to the base are also included within mylIU'GHtlOIl. Other features tend within the shell. 2. turned inwardly toform a flange 17 which of my invention will appear from the followingdetailed description of the embed]? ments thereof illustratedin theaccompanying drawings in which F ig. 1 is a front elevation partlyinsection of a stove constructed in accordance with my invention;

Fig. 2 is a section on line 2-2 of Fig. 1;

Fig. 3 is a'sec'tional detail through the lower portion of a burner drumand collar;

portion of the fuel supply pipe, and" Fig. 1.0 is a sectional detailthrough the upper-portion of a modified form of stove.

In the embodiment of my invention-as il lustrated in Figs. 1 to 8 I haveshown an oil cook stove employing a pair of burners 2 each burner-termedof sheet metal and utilized to supply heat through a tubular drum 3 to apair of cooking holes in a stamped metal heat collector .4- carried bythe stove top 5,;the top being supported as usual-by. legs 6 joined by aside wall '7. A grate 8 isplaced over the cooking holes to support a panor vesselthereover.

A fuel pipe 9 is clamped to a burner base 10 bystraps 11 and suppliesthe burners with fuel and. also serves indirectly as a support for theburners. A base collar or ring 12 of equal diameter to that of theburner shell is cut out at two diametrical points to fit partially overthe pipe 9 and is soldered or otherwise rigidly secured thereto and.

forms a seat .tor the burner. The ring 12 is preferably drawn from sheetmetal and thelower edge (Figs. i, 5 and 6') is curled into a .bead13from which it extends upwardly to form a cylindrical vertical wall 14,then inwardly to form a seating ledge 15'..o1t' width equalte thethicknessof the burner shell, then upwardlyagain to form a retainingcylindrical wall 16 adapted to ex- The ring is finally is enlarged attwo diametrically opposite portions wherein openings 18 are cut forreasons later disclosed.

The lower extremity of the tubular burner shell 2 fits upon the ring 12with the bottom resting upon the seating ledge 15, and is held thereonby means of a resilient spring metal U-shaped latch member, the freeended arms 19 of which extend downwardly from within the shell, wherethey are soldered or otherwise fastened thereto, through the openings18. At the very end the arms 19 are bent to form a hook or latch 19" toengage the under surface of ledge and securely retain burner shell 2upon the base ring 12. The connecting arm 20 of the U- shaped latchmember extends diametrically across the shell and is twisted 90 in orderto bring its faces vertical. This portion of the latch member may beused as a support for a heat spreader 21 if so desired (Fig. 2).

The burner is connected to fuel pipe 9 by means of a flanged elbow 22,riveted to the side of the burner shell, nipple 23 and coupling 24, thusenabling the fuel pipe to be disconnected at will by merely looseningthe coupling 2 1. The burner may be quickly removed by looseningcoupling 2a, pressing latches 1.9 together to disengage them from burnerring 12 and raising the burner free and clear from the stove.

A tapered burner collar 25 also preferably drawn from sheet metal ismounted upon the upper end of the burner so as to extend around theupper portion thereof and is supported thereon by means of four webs 26extending inwardly from the collar to the burner shell, the edges ofwhich engage the shell and a bead 27 spun outwardly from the burner. Thelower edge of the collar is of substantially greater diameter than theburner shell, is circular in cross section and rolled to form a bead 28from which the collar extends upwardly for a short distance in aspherical contour to form an annular seating shoulder 29 constitutingsubstantially a portion of a sphere after which the collar continuesupwardly at a constantly decreasing diameter to a point slightly belowthe flame spreader where it is only a little larger in diameter than thespreader.

The lower end of drum 3 is reduced in di ameter to substantially that ofthe curved shoulder portion 29 of the burner collar and terminates in acurled head 30 which rests upon shoulder 29. The upper end of drum 3projects through the flanged opening in the bottom of the heat collector4 whereby the drum forms a heat conduit from the burner to the heatcollector. It readily follows that even though the opening in the bottomof the heat collector may not be directly over the burner, i. e.,concentric therewith, the lower end of drum 3 terminating in bead 30will rock about the curved seating shoulder 29 and still maintain anairtightjoint, thus preventing the admission of air therethrough.

One end of fuel pipe 9 is connected through a bend 31 to the bottom of asubtank 32 over which is an inverted fuel tank 33. The tank and subtankare supported upon one side' wall 7 in spaced relation thereto by meansof a U-shaped sheet metal bracket 34, the lower portion of theconnecting arm of which is soldered or otherwise rigidly secured to thesubtank as at 35 and the upper portion is curved to fit the contour ofthe upper tank 33 as at 36 to constitute a rest therefor. The two freeended arms of the U-shaped bracket are flanged outwardly at theirextremities and are socured to the end wall of the stove by means offour bolts 37. For this purpose the wall 7 has four arcuate slots 38 cuttherein with the center of fuel pipe 9 as a center from which the are isstruck, through which slots the securing bolts 37 pass. Surrounding oneof these four slots a circular head 39 is pressed inwardly in wall 7. Acam disk 10 having a spirally cut slot 41 therein is mounted forrotation within the circular bead, one of the bolts 37 passing throughthis slot as well as the slot in the wall 7. The disk is formed with alaterally bent finger 12 by means of which disk 10 may be rotated aboutbolt 37 as a center. If it is desired to adjust the fuel pipe 9angularly in order to level the burner seats 12, it is only necessary toloosen bolts 37 and rotate disk 10 whereby the reservoir and the pipe 9will rock about the axis of pipe 9 as a center and bracket at will slideon wall 7 within the limits of slots 38 cutthereinto.

Instead of the burner ring 12 having its bottom edge recessed at twopoints to fit upon the fuel pipe 9, as above described, it may beotherwise secured upon the pipe. For example, as shown in Fig. 9 theburner ring 12 may have its annular vertical wall 14 wider than thediameter of the pipe 9 and provided with two opposing openings which fitover the pipe, the metal below the openings serving to space the pipeslightly from the burner base 10 upon which the bottom edge of thering12 rests. As in the construction previously described, the ring maybe soldered or otherwise attached to the pipe.

Referring particularly to Fig. 10 I have shown the upper portion ofmodified type of stove wherein a single burner is utilized to supplyheat to a single cooking opening and in this instance the upper end ofthe drum 3 projects through an opening formed in a heat collectingchamber 4 formed by downwardly inclined walls which are integral withand extensions of the stove top part 5. The usual grate 8 is placed overthe heat collecting chamber to support a vessel thereover. The lowerpart of the stove structure may be similar to that previously described.

From the foregoing it is apparent that I have provided a cook stovewhich may be readily assembled and disassembled and which may beconstructed chiefly of sheet metal parts which tend to auton'laticallyadjust themselves into close fitting position and which permit of manualadjustment where necessary due to variation in processes of manufactureand of installations.

It is to be understood that the features of my invention may be appliedto other types of stoves and that various modifications may be madewithout departing from the scope and spirit of my invention as definedin the appended claims.

I claim:

1. In a cook stove, a burner shell, a fuel supply pipe detachablyconnected to said burner shell for delivering fuel thereto, a burnersupporting ring rigidly secured to said pipe and underlying said burnereonstituting a support therefor, and means for detachably securing saidshell to said ring.

2. In a cook stove, a burner shell, a fuel supply pipe detachablyconnected to said burner shell for delivering fuel thereto, a burnersupporting ring rigidly secured to said pipe and underlying said burnerconstituting a support therefor, and means for de-,

tachably securing said shell to said ring comprising a releasable springlatch mem her. I

3. In cook stove, a burner shell, a fuel stituting a support therefor,having a seat-' ing ledge and a portion projecting into said 7 burnershell to position the same thereon, and means for detachably securingsaid burner upon said ring comprising spring latch members releasablyengaging said ring.

5. In a cook stove, a top part including a heat collecting chamber, aburner disposed below said chamber for generating and supplying heatthereto, and a drum constituting a heat conduit connecting said burnerand said chamber, said drum projecting into said chamber 'at its upperend and rockably resting upon said burner at its lower end with itslower edge contacting throughout with said burner. I

6. In a cook stove, a top part including a heat collecting chamber, aburner disposed below said chamber for generating and supplying heatthereto and having a curved annular seating shoulder, and a drumconstituting a heat conduit connecting said burner and said chamber,said drum projecting into said chamber at its upper end and rockablyresting upon said curved seating shoulder at its lower end with itslower edge contacting throughout with said shoulder.

7. In a cook stove, a top part including a heat collect-ing chamber, aburner disposed below said chamber for generating and supplying heatthereto, a drum constituting a conduit for conducting heat from saidburner to said. chamber, a collar supported from and surrounding saidburner and having a curved seating shoulder upon which the lower end ofsaid drum rests, the upper end thereof projecting into said chamber.

8. In a cook stove, a top part including a heat collecting chamber, aburner disposed below said chamber for generating and supplying heatthereto, a drum constituting a conduit for conducting heat from saidburner to said chamber, a collar supported from and surrounding saidburner and having an annular seating shoulder constituting substantiallya portion of a sphere, the lower edge of said drum being circular and ofa diameter to rest thereupon, the upper end of said drum extending intosaid chamber and being retained thereby.

9. In a cook stove, a frame, sheet metal side walls carried by saidframe, a burner mounted within said walls, a fuel pipe leading to saidburner, and a fuel reservoir connected tovsaid pipe and adjustablysecured to one of said walls adapted to be rotated about an axisperpendicular to the plane of said wall.

10. In a cook stove, a frame, sheet metal side walls carried by saidframe, a burner mounted within said walls, a fuel pipe leading to saidburner, and a fuel reservoir connccted to said pipe and adjustablysecured to one of said walls and adapted to be rotated about said fuelpipe as a center of rotation.

11. In a cook stove, a frame, sheet metal side walls carried by saidframe, a burner mounted within said walls, a fuel pipe leading to saidburner, a fuel reservoir connected to said pipe and adjustably securedto one of'said walls and adapted to be rotated about an axisperpendicular to the plane of said wall and means for rotating saidreservoir whereby it may be adjusted to different an-v gular positions.

12. In a cook stove, a frame, sheet metal side walls carried by saidframe, a burner mounted with said walls, a fuel reservoir for supplyingfuel to said burner, and means for ad ustably securing said reservoir toone of said walls comprising a bracket rigidly secured to said reservoirand adjustably secured to said wall by fastening means passing throughsaid bracket and said wall, one of said latter two elements havingarcuate slots therein through which said fastening means passes wherebysaid bracket may be moved relatively to said wall.

1;}. In a cook stove, a fran'ie, sheet metal side walls carried by saidframe, a burner mounted with said walls, a fuel reservoir for supplyingfuel to said burner, means for adjustably securing said reservoir to oneof said walls comprising a bracket rigidly secured to said reservoir andadjustably secured to said wall by fastening means passing through saidbracket and said wall, one of said latter two elements having arcuateslots therein through which said fastening means passes, and means foradjusting said bracket and reservoir relatively to said wall withinlimits of said slots.

14. in a cook stove, a frame, sheet metal side walls carried by saidframe, a burner mounted with said wall, a fuel reservoir for supplyingfuel to said burner, means for adjustably securing said reservoir to oneof said walls comprising a bracket rigidly secured to said reservoir andadjustably secured to said wall by fastening means passing through saidbracket and said wall, one of said latter two elements having arcuateslots therein through which said fastening means passes, and means foradjusting said bracket and reservoir within limits of said slots,comprising a rotatable cam disk having an eccentric slot therein throughwhich one of said fastening means passes.

15; In a cook stove, a frame, sheet metal side Walls carried by saidframe, a burner mounted witl said walls, a fuel reservoir for supplyingfuel to said burner, and means for adjustably securing said reservoir toone of said walls con'iprising a bracket rigidly secured to saidreservoir an d adjustably secured to said wall for fastening means passing through said bracket and said wall, one or said latter two elementshaving areua'te slots therein through which said fastening means passes,said wall having a circular bead surrounding one of said slots, andmeans for adjusting said bracket and tank within limits of said slotscomprising a cam disk rotatable within said circular bead and having acam slot engaging one of said fastoning means.

16. In a stove, a burner a d a supporting ring therefor, said ring vingportion thereof adapted to extend into the lower portion of said burner,said burner having a latch depending therefrom adapted to engage saidring to secure said burner thereto.

17. In a stove, a burner and a burner base for sugporting said burnerthereon said burner having a latch thereon adapted to engame said baseto releasably secure said burner to said base comprising a U-shaped'LEl/VIS T. l VILCOX.

